PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In the April, 1915 issue of The Wireless Age, Marconi's Wireless Telephone was a further report on the low-powered vacuum-tube transmitter, while a test transmission, from the American Marconi plant at Aldine, New Jersey to David Sarnoff aboard the Bunker Hill off the coast of New York, was reported in Waft Music Into Air By Wireless from the June 12, 1916 New York Times and Marconi Wireless Telep
http://www.w3.org/ns/prov#wasQuotedFrom
  • earlyradiohistory.us